The Registrations for the Events Calendar WordPress plugin before 2.7.6 does not sanitise and escape the event_id in the rtec_send_unregister_link AJAX action (available to both unauthenticated and authenticated users) before using it in a SQL statement, leading to an unauthenticated SQL injection.
[
{
"product": "Registrations for the Events Calendar – Event Registration Plugin",
"vendor": "Unknown",
"versions": [
{
"lessThan": "2.7.6",
"status": "affected",
"version": "2.7.6",
"versionType": "custom"
}
]
}
]